<ul>
    <li class="{{activeLi=='img-text'?'toolbar-tab-on':''}}" >
        <a href="#/material/img_text">图文消息</a>
    </li>
    <li class="{{activeLi=='pictures'?'toolbar-tab-on':''}}">
        <a href="#/material/pictures">图片库</a>
    </li>
    <li class="{{activeLi=='voice'?'toolbar-tab-on':''}}">
        <a href="#/material/voice">语音</a>
    </li>
    <li class="{{activeLi=='video'?'toolbar-tab-on':''}}">
        <a href="#/material/video">视频</a>
    </li>
</ul>